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Title: Anomalous soft photons: Status and perspectives
This report summarizes the work of the EMMI Rapid Reaction Task Force on “Real and Virtual Photon Production at Ultra-Low Transverse Momentum and Low Mass at the LHC”. We provide an overview of the soft-photon puzzle, i.e., of the long-standing discrepancy between experimental data and predictions based on Low’s soft-photon theorem, also referred to as “anomalous” soft photon production, and we review the current theoretical understanding of soft radiation and soft theorems. We also focus on low-mass dileptons as a tool for determining the electrical conductivity of the medium produced in high-energy nucleus-nucleus collisions. We discuss how both topics can be addressed with the planned ALICE 3 detector at the LHC.  more » « less
Award ID(s):
2209335
PAR ID:
10589583
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publisher / Repository:
Elsevier, ScienceDirect
Date Published:
Journal Name:
Physics Reports
Volume:
1097
Issue:
C
ISSN:
0370-1573
Page Range / eLocation ID:
1 to 40
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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